579
CDUS43 KLOT 212142
CLIMDW
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
442 PM CDT TUE OCT 21 2025
...............................
..THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR OCTOBER 21 2025
VALID TODAY AS OF 0400 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1928 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 56 11:37 AM 87 1953 61 -5 82
MINIMUM 46 6:08 AM 26 1952 45 1 53
AVERAGE 51 53 -2 68
PRECIPITATION (IN)
TODAY T 2.24 1933 0.11 -0.11 0.00
MONTH TO DATE 2.74 2.40 0.34 0.51
SINCE SEP 1 3.30 5.17 -1.87 2.40
SINCE JAN 1 28.12 29.20 -1.08 31.87
DEGREE DAYS
HEATING
TODAY 14 12 2 0
MONTH TO DATE 82 183 -101 102
SINCE SEP 1 103 242 -139 112
SINCE JUL 1 105 246 -141 112
COOLING
TODAY 0 0 0 3
MONTH TO DATE 65 17 48 19
SINCE SEP 1 269 153 116 238
SINCE JAN 1 1410 1109 301 1361
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 28 HIGHEST WIND DIRECTION W (280)
HIGHEST GUST SPEED 39 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 14.5
SKY COVER
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 3:00 AM
LOWEST 48 1:00 PM
AVERAGE 69
......................................................
THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 61 87 1953
MINIMUM TEMPERATURE (F) 44 24 1930
SUNRISE AND SUNSET
OCTOBER 21 2025.......SUNRISE 7:10 AM CDT SUNSET 6:00 PM CDT
OCTOBER 22 2025.......SUNRISE 7:12 AM CDT SUNSET 5:59 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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